Frictional gearing.



No. 705,390. Patented July 22, |902.v

w. n., BAILEY. FRIGTIDNAL GEARING.

(Application med mr. 22, 19.02,)

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,4 WILLIAM Y, 13.,.1DLAILEX; gong-PAIIIIEBSBIIRG; wnsr p VIRGINIA.

FRICTIQVNAL GEARING.

' ...SPECIFICATION vformringtpart..offIl'ttersPaterntNo.3705,390, datedJu1y-22, 1902. v

' Appiiotnon nea Mara 2z, v12902. semi No. 99.424. (No man.) i.

T all whom it mrtg/concern: v v Be it known thatLWILLIAM D. DAILEY, ot Parkersburg, in the county of Wood and State of West Virginia, have invented a newvand useful Improvementin Frictional Gearing, of which the following is a speciiication.

My invention -relatesmore particularlyto peculiar means for -throwing frictional gear in and out of working position.

The invention is designed to obviate objections heretofore existingin the use and means employed in connection with `such gearingin sawmills, whereA it isv desired tolsto'p; one .part of the mill without stopping the enginefand other parts of the mill.

In sawmills and other machine plants it is sometimes desirable, and I may add economical, to employ one motor or engine having power sufficient to work various or many separate and distinct machines, and iny such a plant for one and another reason it becomes necessary to stop one machine without intertering with continuous working of other machines deriving power from the same source,

and therefore while my invention is adapted' to frictional gearing in all such plants it provides special and improved` meansvforfstopfL ping and starting the saw in a' sawmill plantwithout stopping the engine,` and consequently all other machines or .parts of the, plant desired to be keptin motion. ,f

As before stated, while my invention in the main is adapted to frictional gearing used in connection with varied and many types ofl machines, Iwill simply show by drawings and describe its use in connection with frictinal gear commonly employed in sawmills--t`- e.; gearing connecting the saw-arbor and operat ing devices between it and the source lot' power.

In sawmills it is often necessary to stop the saw for ling and, again, at times it is desirable to do so inishort' space of time, due to condition of the log ormaterial being sawed or lfor'other reasons, and to such end I have devised and constructed the novel and peculiar means for stopping and starting the saw hereinafter described, adapted to instantly throw the saw-arbor out of operative connection with other parts of the mill without stopping the continuous working of said other parts andthe engine or source of power.

. Inorder to enable othersto makeand use .my inyentiomfI 4will .now .proceed to describe illu'stratingtheapplication oimy invention.

Fig. 2 is an end elevation of the-framework supporting the gearing, saw-arbor, &c., looking at the hand-wheel end of the frame and showing the special locking-pawls; and Fig.

; 3 is a detail section` taken on line a: of fFig'Ql.'

In the'drawings, A represents a common and well-known framing of a sawmill; B, the saw-arbor; C, the power-shaft, and D au intermediate or right-angle shaft having at one end a beveled frictional gear or disk D', adapted to connect similar-shaped disks B and C on the saw-arbor a'nd power-shaft, all as is common and well known in such class or type of frictional gearing.

Now, as stated, the object'of myinvention being to atord eiective and instantaneous stopping and starting of the saw-arbor-t`. e., throwing it out of operative connection in this instance with. the power-shaft C-to do so it is apparent the disk D' must be moved out lot' engagement with the disks B C.

In accomplishing such result I provide the shaft -D,-supporting the disk'D', with an endwise adjustment. In providing for such adjustment of the shaft D, I couple its end-the end opposite to the disk D-with a block'E `by'well-known means, such as will allow rotation of the shaft D and at the same time permit the block E to slide in a suitable way F. AGy representsaiixed screw one end of which `enters a'jthreadedl opening in the near end of the said block E,'while its other end is supported against endwise movement in a suitable bearing or box H on theframework A.

IOO

gaging the pawls J J and turning the handwheel K to the right. In such operation the screw G being held against endwise movement its other or threaded end will engage the threaded opening in the block E and draw it on the slideway F. The said block being coupled to the shaft D, as stated, the operation will move it endwise and disengage the disks D, B', and C', when the saw-arbor by frictional or other resistance to rotation of the saw will be quickly stopped and the powershaft C allowed continuous rotation. The advantage derived in the use of such simple and quick-acting means for throwing the saw out of operative or working connection with the power-shaft will be appreciated by the skilled in the art. In stopping the saw of a mill with means heretofore provided it was necessary to either cut off steam or other motive power or employ a belt-shifter, leaving machinery having power stored up in rotation free to continue operation until the said stored-up power is expended. \Vitl1 my improved and quick-acting stopping means the saw-arbor and saw are the only parts thrown out of gear. All other parts of the mill may continue in motion.

In using two locking-pawls, as described above, it is apparent that the block-adj usting screw may be positively secured against turning with the disks D', B', and C either in or out of engagement.

Obviously the power and other shafts mentioned in my specification must be supported in suitable bearings; but as such features form no part of my invention, while I show such means in my drawings,I have not thought it necessary to refer thereto, since the same is well known and may be varied according as the manufacturer may desire.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is-

1. The combination in a sawmill of independent power and driven shafts having frictional gears at the inner ends thereof as shown, an intermediate similar gear adapted t0 connect the power-shaft and driven shaft and means for adjusting the intermediate gear into and out of operative connection with the power-shaft and driven shaft, substantially as described.

2. In a mill of the character stated independent power and driven shafts having at their ends frictional gears as stated, a rightangle shaft, an intermediate similar gear supported by and rigid with the right-angle shaft, a iixed screw and means connecting it with the right-angle shaft, said means being adapted in operation to adjust the said rightangle shaft and its gear out of and into operative connection with the gearing on the power and driven shafts, substantially as described.

3. The combination with two independent shafts having gearing as specified, of a rightangle shaft and an intermediate gear supported at the end of said right-angle shaft as shown, the latter resting in bearings permitting endwise movement of the said shaft as specified, a sliding box having permanent but loose connection with one end of the rightangle shaft, a fixed screw adapted to enter a threaded opening in the said box, means for locking the screw against turning in leither direction and a hand-wheel at the outer e'nd of the screw all substantially as shown and for the purpose set forth.

WILLIAM D. DAILEY.

Vitnesses:

F. B. BURK, W. H. TERRY. 

